Home / 857,741.54-1,183,679.53-490,212.54

Finding the Fourth Proportional to 857,741.54, 1,183,679.53 and 490,212.54

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Solution

The fourth proportional to 857,741.54, 1,183,679.53 and 490,212.54 is: 676,491.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,741.54 : 1,183,679.53 = 490,212.54 : x
  2. Step 2: Convert to fraction form
    857,741.54/1,183,679.53 = 490,212.54/x
  3. Step 3: Cross multiply
    857,741.54x = 1,183,679.53 × 490,212.54
  4. Step 4: Simplify right side
    857,741.54x = 580,254,547,721.78
  5. Step 5: Solve for x
    x = 580,254,547,721.78/857,741.54
  6. Step 6: Final answer
    x = 676,491.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.